Journal of Radiation Research and Radiation Proces ›› 2017, Vol. 35 ›› Issue (6): 60701-060701.doi: 10.11889/j.1000-3436.2017.rrj.35.060701

• RADIATION INTERDISCIPLINARY RESEARCH • Previous Articles     Next Articles

Traceability of absorbed dose to water in high-energy photon beams in medical electron accelerators

LU Xun, SUI Guoping, HANG Xuelian, WANG Pengde, SUN Rongrong, XIAO Yao, CHEN Jianxin, HUANG Jun   

  1. Shanghai Institute of Measurement and Testing Technology, Shanghai 201203, China
  • Received:2017-09-07 Revised:2017-11-09 Online:2017-12-20 Published:2017-12-20
  • Supported by:

    Supported by Quality Inspection Public Welfare Industry Research Special:Medical Accelerator Photon Absorption Dose Traceability Technology and Standard Device Research (201510001-03)

Abstract:

Results obtained by direct measurement of absorbed dose to water for medical electron accelerators were compared with that by indirect measurements (through converting the measured air kerma into absorbed dose to water). Experiments results demonstrate that the difference between two methods is within 1%, it is validated by the transfer comparison method meanwhile. It is demonstrated that the absorbed dose to water traceability system based on the photon absorbed dose to water for the accelerator is feasible. This provides the basis for direct measurement of absorbed dose to water for accelerators.

Key words: High energy photon, Absorbed dose to water, Correction factor for beam quality, Dissemination of the value of quantity, Traceability of value of quantity

CLC Number: 

  • TL99